1. 
   Ton mile
   Ton mile (Railroads) A unit of measurement of the freight transportation performed by a railroad during a given period, usually a year, the total of which consists of the sum of the products obtained by multiplying the aggregate weight of each shipment in tons during the giv...
   Found op http://www.encyclo.co.uk/webster/T/67
   
   
2. 
   Ton mile
   • A unit of measurement of the freight transportation performed by a railroad during a given period, usually a year, the total of which consists of the sum of the products obtained by multiplying the aggregate weight of each shipment in tons during the given period by the number of miles for wh...
   Found op http://thinkexist.com/dictionary/meaning/ton_mile/
   
   
3. 
   TON MILE
   A measurement used in the economics of transportation to designate one ton being moved one mile. This is useful to the shipper because it includes the distance to move a commodity in the calculation.
   Found op http://www.insurexchange.com/glossary/maritime.htm
   
   
4. 
   Ton-mile
   One ton transported one mile.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
5. 
   Ton-mile
   Standardised unit of transport cost.
   Found op http://www.metalbulletin.com/Glossary.html
   
   

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